Effect of functional group ratio ([OH]/[NCO]) on long-term reliability of polyurethane pressure-sensitive adhesives (PU-PSA)
발표자
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초록
내용
A high persistence and removality polyurethane pressure-sensitive adhesives(PU-PSA) were studied to achieve better pressure-sensitive adhesives (PSA), various polyols, isocyanates, and additives were tried. With control of mole ratio of Hydroxyl group/Isocyanate group ([OH]/[NCO]), high persistence and removality polyurethane pressure-sensitive adhesives (PU-PSA) for long-term reliability estimated through infrared spectroscopy (FT-IR) and used WLF equation (Williams-Landel-Ferry equation). The structures and properties of the fabricated PU-PSAs were analyzed by differential scanning calorimetry (DSC) and infrared spectroscopy (FT-IR). One hundred eighty degree peel tests by universal testing machine (UTM) were used to evaluate mechanical peel properties of PU-PSAs.